Here are some of the most notable: Advertisement (function() ) However, there are a few interesting new features that will certainly interest some users. The focus of OS X 10.6 is simply to improve overall efficiency and reduce it's footprint. The first thing Mac users should be aware of is that there's nothing eye-popping in Snow Leopard that's going to have you scrambling to upgrade. Snow Leopard Mac OS X 10.6 was superseded by Lion OS X 10.7 in 2011 which in turn was replaced by Mountain Lion in 2012.
